CN103096439B - Dispatching method, data transmission method, access control website and the website of website - Google Patents
Dispatching method, data transmission method, access control website and the website of website Download PDFInfo
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- CN103096439B CN103096439B CN201110348338.2A CN201110348338A CN103096439B CN 103096439 B CN103096439 B CN 103096439B CN 201110348338 A CN201110348338 A CN 201110348338A CN 103096439 B CN103096439 B CN 103096439B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a kind of dispatching method of website, data transmission method, access control website and website, including：Access control website sends the one or more in packet configured information, transmitting continuous temporal information and resource impact information to one or more websites, and transmission opportunity is distributed for the website.The present invention is periodically carried out in the case of data report in big quantity website, by for the appropriate transmission opportunity of each website periodic allocation, improved so as to avoid due to channel access collision probability caused by large user's number competitive channel, ensure that each website keeps resting state when that need not access channel at the same time, improve the utilization ratio and power-saving capability of Radio Resource.
Description
Technical field
The present invention relates to wireless communication technique field, more particularly to a kind of dispatching method of website, data transmission method, connect
Enter to control website and website.
Background technology
At present, in field of wireless, WLAN (WLAN) is fast-developing, and the application demand of WLAN is increasingly increased
It is long.In Institute of Electrical and Electric Engineers industrial specification IEEE802.11 groups, successively define 802.11a, 802.11b and
The WLAN technologies of the series of standards such as 802.11g, then again occur other task groups successively, be directed to development be related to it is existing
The specification of 802.11 technological improvements, for example, 802.11ah task groups are mainly for the resource for exempting from licensed band below 1GHz frequency ranges
Utilized, for supporting the new network applications such as intelligent grid, sensor network, Cellular Networks load balancing.
In 802.11, an access point or access control website (access point, abbreviation AP) and associated with AP
Multiple websites (Station, abbreviation STA) constitute a Basic Service Set (basic service set, abbreviation BSS).
802.11 most basic operator schemes are to utilize the Carrier Sense Multiple Access mechanism CSMA/CA (CSMA with conflict avoidance
With Collision Avoidance) make multiple websites by competing sharing wireless channel.EDCA is enhanced kind of operation pattern,
Using CSMA/CA mechanism, make multiple and different priority queries by competing sharing wireless channel, and preengage a transmission opportunity
(Transmission Opportunity, abbreviation TXOP).
In the new WLAN application scenarios that 802.11ah task groups define, there are many requirements to support that large user's number is passed
It is defeated, such as intelligent grid meter reading, remote-control romote-sensing, public safety, the typical use-case such as medical monitoring.And required under intelligent grid scene
6000 websites can be at most supported under one BSS, and system needs to carry out big quantity website data periodically or non-periodically
Report.These websites under applying usually require that generally by battery powered and do not need to change battery for a long time, therefore relatively traditional
Its requirement to power saving is very high for website in wlan system.According to the channel access mode of traditional CSMA/CA, greatly
Quantity website needs to continue monitor channel, and obtaining channel by competitive way will cause largely to collide, so that efficiency is reduced,
And it is unfavorable for the economize on electricity of website.
802.11 support energy-saving mode operation.Site works are in activation pattern (Active patterns) under normal circumstances, if
Into energy-saving mode (Power Save patterns), then work alternatively in two states：Waking state (Awake states), that is, power on
Work；Resting state (Doze states), i.e., operate without transmitting-receiving.
Multi-site poll energy-saving mode (Power Save Multi Poll, abbreviation PSMP) operation of the prior art, can
Think that the cycle receives and the website of transmission small data packets distributes certain uplink and downlink resource, not receive and send at it
Unactivated state is kept when data, so as to carry out power saving.By send PSMP radio frames access control website can be with
Associated multiple website scheduling resources, so as to further increase channel utilization and power-saving capability.
But for the application scenarios of intelligent grid, since website quantity is more, be mostly uplink service and business feature extremely
Similar, multi-site poll energy-saving mode of the prior art needs to be optimized, the characteristics of to adapt to new application scenarios, from
And further improve channel utilization and power-saving capability.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of dispatching method of website, data transmission method, access control
Website and website, can realize uplink traffic transmission in the case of major station point quantity, it is possible to increase channel utilization, and strengthen station
The power saving capability of point.
In order to solve the above technical problems, a kind of dispatching method of website of the present invention, including：
Access control website sends packet configured information, transmitting continuous temporal information and resource to one or more websites and reflects
The one or more in information are penetrated, transmission opportunity is distributed for the website.
Further, the packet configured information includes：Group identification information and/or, station recognition offset information with station
Point identifier total number information, indicates to be allocated the scope of the website of transmission opportunity.
Further, do not believe in the packet configured information comprising described group of identification information comprising station recognition number offset
When breath is with station recognition total number information, the scope of the website of the allocated transmission opportunity is what described group of identification information was directed toward
Whole websites in packet；Alternatively,
In the packet configured information comprising the station recognition offset information and station recognition total number information not
During comprising described group of identification information, the scope of the website of the allocated transmission opportunity be according to station recognition offset information with
The website that station recognition total number information determines；Alternatively,
Group identification information, station recognition offset information and station recognition sum are included in the packet configured information
During information, the scope of the website of the allocated transmission opportunity is in the packet that described group of identification information is directed toward, and is known according to website
The website that alias offset information is determined with station recognition total number information.
Further, described group of identification information is preceding n (n >=1) position of the association identifier of website, described group of identification information
Preceding n identical websites of association identifier are included in the packet of direction.
Further, further include：
It is described to connect when the access control website does not send the packet configured information to one or more of websites
Basic Service Set where entering to control website uses predefined packet configured information.
Further, the transmitting continuous temporal information includes：Transmission opportunity start offset information and/or transmission opportunity list
Bit duration information, the transmission opportunity start offset information indicate the initial position of first transmission opportunity, the conveyer
The unit duration of meeting unit duration information instruction transmission opportunity.
Further, do not include and pass comprising the transmission opportunity start offset information in the transmitting continuous temporal information
During defeated chance unit duration information, the website uses predefined transmission opportunity unit duration；Alternatively,
The biography is not included comprising the transmission opportunity unit duration information in the transmitting continuous temporal information
During defeated chance start offset information, the website is using after the radio frames for carrying the transmission opportunity unit duration information
Predefined time interval is as the transmission opportunity start offset information.
Further, further include：
When the access control website does not send the transmitting continuous temporal information to one or more of websites, institute
Basic Service Set where stating access control website uses predefined transmitting continuous temporal information.
Further, the resource impact information indicates whether to distribute transmission for the website of the packet configured information instruction
Chance.
Further, the resource impact information uses resource impact bit diagram, and one in the resource impact bit diagram
A or multiple bits correspond to a website in the scope of the website of the allocated transmission opportunity, indicate whether to be corresponding
Website distributes the quantity of unit duration shared by transmission opportunity and the transmission opportunity of distribution.
Further, in the access control website the resource impact information is not sent to one or more of websites
When, the Basic Service Set where the access control website uses predefined resource impact information.
Further, a kind of data transmission method, including：
Website receives the radio frames that access control website is sent, and checks that website distribution whether is included as in the radio frames to be passed
The configured information of defeated chance, it is described for website distribute transmission opportunity configured information include packet configured information, it is transmitting continuous when
Between one or more in information and resource impact information；
When the website distributes the configured information of transmission opportunity comprising described in the radio frames for website, according to described
The configured information that transmission opportunity is distributed for website calculates initial position and the duration of transmission opportunity, and is distributed for the website
Transmission opportunity in carry out radio frame transmission.
Further, according to it is described for website distribute transmission opportunity configured information calculate transmission opportunity initial position and
Duration, including：
Whether the website is the website point according to packet configured information and resource impact validation of information access control website
With transmission opportunity, if it is confirmed that distributing transmission opportunity for the website, then the website point is calculated as according to transmitting continuous temporal information
The initial position for the transmission opportunity matched somebody with somebody and duration.
Further, further include：
The website receive packet configured information do not receive resource impact information when, reflected according to predefined resource
The packet configured information penetrated information and received confirms whether access control website is website distribution transmission opportunity, if it is confirmed that
Transmission opportunity is distributed for the website, then initial position and the duration of transmission opportunity are calculated according to transmitting continuous temporal information；
Alternatively,
The website refers to when receiving resource impact information no-reception to packet configured information according to predefined packet
Whether the resource impact validation of information access control website for showing information and receiving is website distribution transmission opportunity, if it is confirmed that
Transmission opportunity is distributed for the website, then initial position and the duration of transmission opportunity are calculated according to transmitting continuous temporal information.
Further, further include：
The website is not when receiving transmitting continuous temporal information, using the predefined time interval conduct after radio frames
The transmission opportunity start offset information, and use predefined transmission opportunity unit duration；Alternatively,
The website is receiving transmitting continuous temporal information, and transmission opportunity list is included in transmitting continuous temporal information
When bit duration information does not include transmission opportunity start offset information, using the predefined time interval after radio frames as institute
State transmission opportunity start offset information；Alternatively,
The website is receiving transmitting continuous temporal information, and is risen in transmitting continuous temporal information comprising transmission opportunity
When beginning offset information does not include transmission opportunity unit duration information, using predefined transmission opportunity unit duration.
Further, the website carries out radio frame transmission in the transmission opportunity distributed for the website, including：
The website sends radio frames in the transmission opportunity distributed for the website to the access control website, and receives
The confirmation frame of access control website, if not receiving acknowledgement frame, is retransmitted in the transmission opportunity, described receiving
After acknowledgement frame or the transmission opportunity, the website enters resting state.
Further, the website carries out radio frame transmission in the transmission opportunity distributed for the website, including：
The website sends radio frames in the transmission opportunity distributed for the website to the access control website, has sent
After finishing or after transmission opportunity, into resting state；
The website, into waking state, receives the access control website after transmission opportunity total duration
The confirmation bit diagram of transmission, wherein, transmission opportunity total duration refers to the conveyer of the website of all allocated transmission opportunities
The sum of meeting duration.
Further, further include：
It is described when the acknowledgement bit figure instruction access control website receives the radio frames that the website is sent
Website enters resting state；
When the acknowledgement bit figure instruction access control website does not receive the radio frames that the website is sent, institute
State website and keep waking state, wait the access control website distribution transmission opportunity to be retransmitted.
Further, a kind of access control website, including：Transmission opportunity allocation unit and information transmitting unit, wherein：
The transmission opportunity allocation unit, for distributing transmission opportunity for website, is generated as website distribution transmission opportunity
Configured information, it is described for website distribute transmission opportunity configured information include packet configured information, transmitting continuous temporal information and
One or more in resource impact information；
Described information transmitting element, for the configured information that transmission opportunity is distributed for website to be sent to one or more
A website.
Further, the packet configured information includes：Group identification information and/or, station recognition offset information with station
Point identifier total number information, indicates to be allocated the scope of the website of transmission opportunity.
Further, the transmitting continuous temporal information includes：Transmission opportunity start offset information and/or transmission opportunity list
Bit duration information, the transmission opportunity start offset information indicate the initial position of first transmission opportunity, the conveyer
The unit duration of meeting unit duration information instruction transmission opportunity.
Further, the resource impact information is indicated whether in the scope for the website of the allocated transmission opportunity
Website distributes transmission opportunity.
Further, a kind of website, including：Information receiving unit, transmission opportunity determination unit and radio frame transmission unit,
Wherein：
Described information receiving unit, for receiving the radio frames for accessing control website and sending, checking in the radio frames is
The no configured information for being included as website distribution transmission opportunity, the configured information that transmission opportunity is distributed for website refer to comprising packet
Show the one or more in information, transmitting continuous temporal information and resource impact information；
The transmission opportunity determination unit, for being included as the instruction letter of website distribution transmission opportunity in the radio frames
During breath, according to the initial position of the configured information calculating transmission opportunity that transmission opportunity is distributed for website and duration；
The radio frame transmission unit, for carrying out radio frame transmission in the transmission opportunity of distribution.
Further, the transmission opportunity determination unit, specifically for according to packet configured information and resource impact information
Confirm whether access control website is website distribution transmission opportunity, if it is confirmed that distributing transmission opportunity, then basis for the website
Transmitting continuous temporal information obtains initial position and the duration of the transmission opportunity for website distribution.
Further, the radio frame transmission unit, specifically in the transmission opportunity distributed for the website to described
Access control website sends radio frames, and receives the confirmation frame of access control website, if not receiving acknowledgement frame, in the biography
Retransmitted in defeated chance, after the acknowledgement frame or the transmission opportunity is received, the website enters resting state.
Further, the radio frame transmission unit, specifically in the transmission opportunity distributed for the website to described
Access control website sends radio frames, after being sent or after transmission opportunity, into resting state；It is total in transmission opportunity
After duration, into waking state, the confirmation bit diagram that the access control website is sent is received, wherein, conveyer
Meeting total duration refers to total transmission opportunity duration of the websites of all distribution transmission opportunities.
In conclusion the present invention is periodically carried out in the case of data report in big quantity website, by for each website it is regular
Appropriate transmission opportunity is distributed, is improved so as to avoid due to channel access collision probability caused by large user's number competitive channel,
Ensure that each website keeps resting state when that need not access channel at the same time, improve the utilization ratio of Radio Resource and save electric energy
Power.
Brief description of the drawings
Fig. 1 is the schematic diagram of the embodiment of the present invention 1；
Fig. 2 is the schematic diagram that the first access control website returns to acknowledgement frame in the embodiment of the present invention；
Fig. 3 is the schematic diagram that second of the access control point of the embodiment of the present invention 2 returns to acknowledgement frame；
Fig. 4 is the schematic diagram of the embodiment of the present invention 3；
Fig. 5 is the schematic diagram of the embodiment of the present invention 5；
Fig. 6~Fig. 7 is the schematic diagram of the embodiment of the present invention 6；
Fig. 8 is the Organization Chart of the access control website of embodiment of the present invention；
Fig. 9 is the Organization Chart of the website of embodiment of the present invention.
Embodiment
The dispatching method of the website of present embodiment, including：
Access control website sends radio frames to one or more websites, carries packet configured information, transmitting continuous time
One or more of information and resource impact information, a duration identical transmission opportunity is distributed for each website.
Being grouped configured information includes following one or more information, organize identification information and/or, station recognition offset information
With station recognition total number information, indicate to be allocated the scope of the website of transmission opportunity.
Being grouped configured information can be total with station recognition number not comprising station recognition offset information comprising group identification information
Number information, the scope for being allocated the website of transmission opportunity are whole websites in the packet of group identification information direction.Group identification letter
Preceding n (n >=1) position of the association identifier for website is ceased, preceding n of association identifier are included in the packet that group identification information is directed toward
Identical website.
Packet configured information can also include station recognition offset information and station recognition total number information does not include group
Identification information, the scope for being allocated the website of transmission opportunity are to be believed according to station recognition offset information and station recognition number sum
The definite website of breath.
The association identifier (Association ID, abbreviation AID) of website proceeds by numbering, station recognition number from " 0 "
Offset information is that, for example, station recognition offset information is 50, station recognition total number information is relative to the offset that AID is 0
40, then indicated AID sections are from 50 to 89.
Group identification information, station recognition offset information and station recognition number sum letter can also be included by being grouped configured information
Breath, the scope for being allocated the website of transmission opportunity are in the packet that group identification information is directed toward, according to station recognition offset information
The website determined with station recognition total number information.
Packet configured information can include the configured information of one or more packets.Do not sent out in access control website to website
When sending packet configured information, the website that the basic service where access control website is concentrated uses predefined packet instruction letter
Breath.
Transmitting continuous temporal information includes following one or more information, transmission opportunity start offset information and/or transmission
Chance unit duration information.
Transmission opportunity start offset information indicates the initial position of first transmission opportunity.
Transmission opportunity unit duration information indicates the unit duration of transmission opportunity.One website can distribute one
A or multiple transmission opportunity unit durations.
When transmitting continuous temporal information can continue comprising transmission opportunity start offset information not comprising transmission opportunity unit
Between information, website uses predefined transmission opportunity unit duration, wherein, predefined transmission opportunity unit duration
Refer to transmission opportunity unit duration Basic Service Set acquiescence or that website has learned that.
Transmitting continuous temporal information can also include transmission opportunity unit duration information and be originated not comprising transmission opportunity
Offset information, then website use radio frames after predefined time interval as transmission opportunity start offset information, wherein,
Predefined time interval refers to time interval information Basic Service Set acquiescence or that website has learned that.
When access control website does not send transmitting continuous temporal information to one or more websites, access control website
The website that basic service is concentrated uses predefined transmitting continuous temporal information.
Resource impact information indicates whether to distribute transmission opportunity for the website being allocated in the scope of the website of transmission opportunity.
Resource impact information can use one or more of resource impact bit diagram, resource impact bit diagram bit
A corresponding website, when indicating whether that being assigned with unit shared by transmission opportunity and the transmission opportunity of distribution for corresponding website continues
Between quantity.
When access control website does not send resource impact information to one or more websites, where access control website
The website that basic service is concentrated uses predefined resource impact information.
The data transmission method of present embodiment, including：
Website receives the radio frames that access control website is sent, and checks website distribution conveyer whether is included as in radio frames
Can configured information, for website distribute transmission opportunity configured information include packet configured information, transmitting continuous temporal information and
One or more in resource impact information；
When website is included as the configured information of website distribution transmission opportunity in radio frames, conveyer is distributed according to for website
The configured information of meeting calculates initial position and the duration of transmission opportunity, and is carried out in the transmission opportunity distributed for the website
Radio frame transmission.
Whether website is that website distribution passes according to packet configured information and resource impact validation of information access control website
Defeated chance, if the access controls website to distribute transmission opportunity for the website, according to the biography in transmitting continuous temporal information
Defeated chance start offset information and/or transmission opportunity unit duration information, obtains the initial time of actual transmission opportunity
And Duration Information.
Website receive packet configured information be not received by resource impact information when, according to predefined resource impact
Information and the packet configured information received calculate initial position and the duration of transmission opportunity, wherein, it is described predefined
Resource impact information refers to resource impact information basic service set acquiescence or that website has learned that.
Website is when receiving resource impact information no-reception to packet configured information, according to predefined packet instruction letter
Cease and the resource impact information that receives calculates initial position and the duration of transmission opportunity, wherein, predefined packet refers to
Show that information refers to packet configured information basic service set acquiescence or that website has learned that.
Website is not when receiving transmitting continuous temporal information, using described in the predefined time interval conduct after radio frames
Transmission opportunity start offset information, and use the predefined transmission opportunity duration.
Website is receiving transmitting continuous temporal information, and only continues in transmitting continuous temporal information comprising transmission opportunity
During the time, using the predefined time interval after radio frames as the transmission opportunity start offset information.
Website is receiving transmitting continuous temporal information, and is only originated in transmitting continuous temporal information comprising transmission opportunity
During offset information, using the predefined transmission opportunity duration.
Website is in battery saving mode, and access control website sends radio frames during the monitoring of website to website.
After website receives radio frames, radio frame transmission is carried out in the transmission opportunity of distribution.
Wherein, website carries out radio frame transmission in the transmission opportunity of distribution, can be that website is sent out to access control website
Send radio frames and receive access control website confirmation frame or website only to access control website send radio frames.
If website sends radio frames to access control website in the transmission opportunity of distribution and receives access control website
Acknowledgement frame, if website does not receive confirmation, retransmitted in the transmission opportunity distributed, receiving acknowledgement frame or transmission
After chance, website enters resting state.
If website only sends radio frames in the transmission opportunity of distribution to access control website, sent in radio frames
Finish or the transmission opportunity distributed after, website enters dormancy.
Access control website is unified to send carrying acknowledgement bit figure to website after transmission opportunity total duration
Radio frames, wherein, each bit in acknowledgement bit figure indicates confirmation message to obtain the website of transmission opportunity.Transmission opportunity is total
Duration refers to the sum of transmission opportunity duration of website of all allocated transmission opportunities.
Website is waken up after the transmission opportunity total duration of the website of all distribution transmission opportunities, receives access control
The radio frames for the confirmation bit diagram that website processed is sent, if acknowledgement bit figure instruction access control station checks and accepts the radio frames of website,
Then website enters dormancy；If acknowledgement bit figure instruction access control website does not receive the radio frames of website, website keeps clear-headed
State, waits the distribution of next transmission opportunity to be retransmitted.
The preferred embodiment of the present invention is illustrated below in conjunction with attached drawing, it will be appreciated that described herein preferred real
Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.In the case where there is no conflict, the implementation in the application
Feature in example and embodiment can be mutually combined.
Embodiment 1：
When website carries out network insertion and association certification in a BSS, access point AP distributes 16 bits for website
Long association identifier (Association ID, abbreviation AID), to carry out user's identification in BSS.Will in present embodiment
Associate group identification information of preceding n (n >=1) positions of identifier as website.Under the application scenarios of intelligent grid, website can reach
To as many as 6000, can by low 13 of AID, i.e. bit 0 to bit 12, represent 6000 websites, by the bit 10 of AID~
12 represent the group identification information of website packet, i.e., website are divided into 8 groups, and every group includes maximum 1024 websites.
In the present embodiment, intelligent grid website carries out data according to fixed cycle and reports, access control website AP according to
Multi-site poll energy-saving mode periodically sends the distribution that PSMP radio frames are transmitted chance to website.Website most of time is not
Data receiver is carried out with sending, in a dormant state, wakes up in the fixed cycle and receives the PSMP radio frames that AP is sent, so as to obtain
Take the distribution information of transmission opportunity.The website for obtaining transmission opportunity is only waken up before its corresponding transmission opportunity reaches, and at it
Data are carried out in transmission opportunity to report.At the end of the transmission opportunity distributed, or before the transmission opportunity distributed terminates
Station data reports when finishing, or before the transmission opportunity distributed terminates station data report finish and receive it is corresponding really
When recognizing, website reenters resting state, until next PSMP radio frames reach.
In the present embodiment, as shown in Figure 1, including group identification information, a station recognition offset information in PSMP radio frames, standing
Point identifier total number information, resource impact bit diagram, transmission opportunity start offset information and transmission opportunity unit duration letter
Breath.
In the present embodiment, website is divided into 8 groups, and group identification information is made of 3 bits.Due to the characteristic of user data
Identical, AP can distribute the transmission opportunity of one or more transmission opportunity unit durations, also, AP respectively for each website
Notify to determine the transmission opportunity start offset information and transmission opportunity unit duration information of first transmission opportunity for website.
The website of all acquisition transmission opportunities in the range of the website of allocated transmission opportunity can be by resource impact ratio
Spy's figure instruction, wherein, one or more bits of resource impact bit diagram correspond to a website.Corresponding one or more bit
Value represent the transmission opportunity that corresponding website obtains unit duration number, for example, in resource impact bit diagram
Each bit corresponds to a website, when the bit value is 1, represents that the website obtains the transmission of a unit duration
Chance；And for example, two bits correspond to a website in resource impact bit diagram, which can take " 00 ", " 01 ",
" 10 ", " 11 ", wherein, " 00 " represents that the website there is no transmission opportunity, and " 01 " represents that the website obtains a unit and holds
The transmission opportunity of continuous time, " 10 " represent that the website obtains the transmission opportunity of two unit durations, and so on.Therefore
Website can determine the number and the conveyer of oneself of the unit interval for the transmission opportunity that each website is distributed according to bit diagram
The relative position of meeting.
For example, a website is judged in resource impact bit diagram, each bit corresponds to a website, itself corresponding bit
Position is 1, and before itself corresponding bit position, it is 1 to have five bit positions, it is determined that the starting of the transmission opportunity of itself
Position is：5 × transmission opportunity unit duration+transmission opportunity start offset.
And for example, a website is judged in resource impact bit diagram, and each two bit corresponds to a website, itself corresponding ratio
Special position is " 10 ", there is 8 bits before itself corresponding bit position, and corresponding bits position is set to " 10 " respectively, i.e.,
There are 4 websites to be assigned transmission opportunity before the website, and when each website is assigned with 2 transmission opportunity units and continues respectively
Between, then the website determines that the initial position of the transmission opportunity of itself is：4 × 2 × transmission opportunity unit duration+transmission opportunity
Start offset.
After the positional information of transmission opportunity is obtained, website can reenter resting state until the conveyer of oneself
Before reaching, ensure that, when transmission opportunity starts, website is in waking state.
As shown in Fig. 2, in transmission opportunity, website sends data to AP, after AP receives data, is stood in the transmission opportunity
Acknowledgement frame is sent, if website does not receive acknowledgement frame after a certain time, can be retransmitted, until the transmission opportunity knot
Beam, website reenter resting state.
Embodiment 2：
As shown in figure 3, in transmission opportunity, website sends data to AP, after AP receives data, does not send and confirms immediately
Frame, but after waiting the transmission opportunity of current all websites, send an acknowledgement bit to the website of all reported datas
Figure, acknowledgement bit figure, which mutually should be, puts 1 expression successful reception.
Website recovers waking state after the transmission opportunity of current all websites, and receives the acknowledgement bit figure,
If the relevant position of the confirmation bit diagram corresponding to website is 0, represent that AP is not successfully receiving data, then keep clear-headed shape
State, prepares to receive new transmission opportunity distribution radio frames, obtains the chance for retransmitting and sending.The rest may be inferred, until transmission success or
Maximum transmission times reach.
Embodiment 3：
As shown in figure 4, PSMP radio frames include：Group identification information, resource impact bit diagram and transmission opportunity duration
Information.Website is divided into 8 groups in the present embodiment, and group identification information is made of 3 bits.Since the characteristic of user data is identical,
AP is the transmission opportunity that each website distributes the identical duration.The initial position of first transmission opportunity is the wireless frame ends of PSMP
After specified time interval afterwards, e.g., short interFrameGap (SIFS).The website of transmission opportunity is obtained in the group that group identification information is directed toward
Indicated by resource impact bit diagram, wherein, the digit of resource impact bit diagram is determined by the number of website in group.Corresponding bit position
1 is set to, represents that corresponding website obtains transmission opportunity, therefore the website in group can put 1 according in resource impact bit diagram
Number determines the relative position of the number of distributed transmission opportunity and the transmission opportunity of oneself.
After the positional information of transmission opportunity is obtained, website can reenter resting state until the conveyer of oneself
Before reaching, ensure that, when transmission opportunity starts, website is in waking state.
Such as Fig. 2, in transmission opportunity, website sends data to AP, after AP receives data, is sent out immediately in the transmission opportunity
Acknowledgement frame is sent, if website does not receive acknowledgement frame after a certain time, can be retransmitted, until the transmission opportunity terminates,
Website reenters resting state.
Embodiment 4：
As shown in figure 3, in transmission opportunity, website sends data to AP, after AP receives data, does not send and confirms immediately
Frame, but after waiting the transmission opportunity of current all websites, send an acknowledgement bit to the website of all reported datas
Figure, which, which mutually should be, puts 1 expression successful reception.
Website recovers waking state after the transmission opportunity of current all websites, and receives the acknowledgement bit figure,
If the relevant position of the confirmation bit diagram corresponding to website is 0, represent that AP is not successfully receiving data, then keep clear-headed shape
State, prepares to receive new transmission opportunity distribution radio frames, obtains the chance for retransmitting and sending.The rest may be inferred, until transmission success or
Maximum transmission times reach.
Embodiment 5：
As shown in figure 5, PSMP radio frames include：Station recognition start offset information, station recognition total number information, resource
Mapped bits figure and transmission opportunity unit duration information.The station recognition start offset information (starting of AID in the present embodiment
Offset) it is 500, station recognition total number information (website number) is 2000, and since the characteristic of user data is identical, AP is each
Website distributes the transmission opportunity of identical duration.The initial position of first transmission opportunity be PSMP radio frames after it is specific
After time interval, such as short interFrameGap (SIFS).It is all obtain transmission opportunities websites by 2000 bits resource impact bit
Figure instruction, wherein, the digit of bit diagram is determined by the number of website in group.Corresponding bit position is 1, represents that corresponding website obtains
Obtain transmission opportunity.Therefore the website in the group can determine the number of distributed transmission opportunity according in bit diagram 1 number
And the relevant position of oneself.
After the positional information of transmission opportunity is obtained, website can reenter resting state until the conveyer of oneself
Before reaching, ensure that, when transmission opportunity starts, website is in waking state.
As described in Figure 2, in transmission opportunity, website sends data to AP, after AP receives data, is stood in the transmission opportunity
Acknowledgement frame is sent, if website does not receive acknowledgement frame after a certain time, can be retransmitted, until the transmission opportunity knot
Beam.Website reenters resting state.
Embodiment 6：
As shown in figure 3, in transmission opportunity, website sends data to AP, after AP receives data, does not send and confirms immediately
Frame, but after waiting the transmission opportunity of current all websites, send an acknowledgement bit to the website of all reported datas
Figure, acknowledgement bit figure, which mutually should be, puts 1 expression successful reception.
Website recovers waking state after the transmission opportunity of current all websites, and receives the acknowledgement bit figure,
If the relevant position of the confirmation bit diagram corresponding to website is 0, represent that AP is not successfully receiving data, then keep clear-headed shape
State, prepares to receive new transmission opportunity distribution radio frames, obtains the chance for retransmitting and sending.The rest may be inferred, until transmission success or
Maximum transmission times reach.
Embodiment 7：
As shown in fig. 6, PSMP radio frames can be included only：Group identification information and transmission opportunity unit duration information,
The whole websites in group for representing to be directed toward group identification information distribute transmission opportunity, and the start offset information of transmission opportunity uses
Predefined time interval after radio frames, for example, short interFrameGap (Short Inter Frame Space, referred to as
SIFS)。
Alternatively, as shown in fig. 7, PSMP radio frames only include：Station recognition offset information, station recognition total number information
With transmission opportunity unit duration information, receiving station is according to station recognition offset information and station recognition total number information
Determine the scope of the website of allocated transmission opportunity, it is believed that in the range of website distribute transmission opportunity, according to transmission opportunity list
Bit duration information determines the position of the transmission opportunity of itself, and after the position of transmission opportunity is obtained, website can be again
Into resting state before the transmission opportunity of oneself reaches, ensure that, when transmission opportunity starts, website is in waking state.
As shown in figure 8, the access control website of present embodiment, including：Transmission opportunity allocation unit and information send single
Member, wherein：
Transmission opportunity allocation unit, for distributing transmission opportunity for website, is generated as the instruction of website distribution transmission opportunity
Information, the configured information that transmission opportunity is distributed for website include packet configured information, transmitting continuous temporal information and resource impact
One or more in information；
Information transmitting unit, for the configured information that transmission opportunity is distributed for website to be sent to one or more websites.
Packet configured information includes：Group identification information and/or, station recognition offset information and station recognition number sum are believed
Breath, indicates to be allocated the scope of the website of transmission opportunity.
Transmitting continuous temporal information includes：Transmission opportunity start offset information and/or transmission opportunity unit duration letter
Breath, transmission opportunity start offset information indicate the initial position of first transmission opportunity, and transmission opportunity unit duration information refers to
Show the unit duration of transmission opportunity.
Resource impact information indicates whether to distribute transmission opportunity for the website being allocated in the scope of the website of transmission opportunity.
Present embodiment as shown in Figure 9 additionally provides a kind of website, including：Information receiving unit, transmission opportunity determine list
Member and radio frame transmission unit, wherein：
Information receiving unit, for receiving the radio frames for accessing control website and sending, checks whether be included as in radio frames
Website distributes the configured information of transmission opportunity, and the configured information that transmission opportunity is distributed for website includes packet configured information, transmission
One or more in Duration Information and resource impact information；
Transmission opportunity determination unit, when distributing the configured information of transmission opportunity for being included as website in radio frames, root
Initial position and the duration of transmission opportunity are calculated according to the configured information that transmission opportunity is distributed for website；
Radio frame transmission unit, for carrying out radio frame transmission in the transmission opportunity of distribution.
Transmission opportunity determination unit, specifically for accessing control station according to packet configured information and resource impact validation of information
Whether point is website distribution transmission opportunity, if it is confirmed that distributing transmission opportunity for the website, is then believed according to the transmitting continuous time
Breath obtains initial position and the duration of the transmission opportunity for website distribution.
Radio frame transmission unit, specifically for sending nothing to access control website in the transmission opportunity distributed for the website
Line frame, and the confirmation frame of access control website is received, if not receiving acknowledgement frame, retransmitted, connect in transmission opportunity
After receiving acknowledgement frame or transmission opportunity, website enters resting state.
Radio frame transmission unit, specifically for sending nothing to access control website in the transmission opportunity distributed for the website
Line frame, after being sent or after transmission opportunity, into resting state；After transmission opportunity total duration, into
Enter waking state, receive the confirmation bit diagram that access control website is sent, wherein, transmission opportunity total duration refers to all points
Total transmission opportunity duration of website with transmission opportunity.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, for the skill of this area
For art personnel, the invention may be variously modified and varied.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (23)
- A kind of 1. dispatching method of website, it is characterised in that including：Access control website sends resource impact information to one or more websites, and transmission opportunity is distributed for the website；The resource impact information indicates whether to distribute transmission opportunity for the website of packet configured information instruction；The resource impact information uses one or more of resource impact bit diagram, resource impact bit diagram bit A website in the scope of the website of the corresponding allocated transmission opportunity, indicates whether to distribute conveyer for corresponding website The quantity of unit duration shared by the transmission opportunity of meeting and distribution；When the access control website does not send the packet configured information to one or more of websites, the access control Basic Service Set where website processed uses predefined packet configured information；Wherein, predefined packet configured information refers to The packet configured information that website has learned that.
- 2. the method as described in claim 1, it is characterised in that：Access control website also sends packet configured information to one or more websites, and transmission opportunity is distributed for the website；The packet configured information includes：Group identification information and/or, station recognition offset information and station recognition number sum are believed Breath, indicates to be allocated the scope of the website of transmission opportunity.
- 3. method as claimed in claim 2, it is characterised in that：Station recognition offset information and station recognition are not included comprising described group of identification information in the packet configured information During number total number information, the whole in the packet that the scope of the website of the allocated transmission opportunity is directed toward for described group of identification information Website；Alternatively,Do not included with station recognition total number information comprising the station recognition offset information in the packet configured information During described group of identification information, the scope of the website of the allocated transmission opportunity is according to station recognition offset information and website The website that identifier total number information determines；Alternatively,Group identification information, station recognition offset information and station recognition total number information are included in the packet configured information When, the scope of the website of the allocated transmission opportunity is in the packet that described group of identification information is directed toward, according to station recognition number The website that offset information is determined with station recognition total number information.
- 4. method as claimed in claim 2 or claim 3, it is characterised in that：Described group of identification information is preceding n (n >=1) position of the association identifier of website, in the packet that described group of identification information is directed toward Include preceding n identical websites of association identifier.
- 5. the method as described in claim 1, it is characterised in that：Access control website also sends transmitting continuous temporal information to one or more websites, and conveyer is distributed for the website Meeting；The transmitting continuous temporal information includes：Transmission opportunity start offset information and/or transmission opportunity unit duration letter Breath, the transmission opportunity start offset information indicates the initial position of first transmission opportunity, when the transmission opportunity unit continues Between information instruction transmission opportunity unit duration.
- 6. method as claimed in claim 5, it is characterised in that：Do not held in the transmitting continuous temporal information comprising the transmission opportunity start offset information comprising transmission opportunity unit During continuous temporal information, the website uses predefined transmission opportunity unit duration；Alternatively,The conveyer is not included comprising the transmission opportunity unit duration information in the transmitting continuous temporal information During meeting start offset information, the website is using predetermined after the radio frames for carrying the transmission opportunity unit duration information Adopted time interval is as the transmission opportunity start offset information.
- 7. the method as described in claim 1, it is characterised in that further include：It is described to connect when the access control website does not send the transmitting continuous temporal information to one or more of websites Basic Service Set where entering to control website uses predefined transmitting continuous temporal information.
- 8. the method as described in claim 1, it is characterised in that：When the access control website does not send the resource impact information to one or more of websites, the access control Basic Service Set where website processed uses predefined resource impact information.
- A kind of 9. data transmission method, it is characterised in that including：Website receives the radio frames that access control website is sent, and checks website distribution conveyer whether is included as in the radio frames The configured information of meeting, the configured information that transmission opportunity is distributed for website include resource impact information；When the website distributes the configured information of transmission opportunity comprising described in the radio frames for website, according to described for station The configured information of point distribution transmission opportunity calculates initial position and the duration of transmission opportunity, and in the biography distributed for the website Radio frame transmission is carried out in defeated chance；The resource impact information indicates whether to distribute transmission opportunity for the website of packet configured information instruction；The resource impact information uses one or more of resource impact bit diagram, resource impact bit diagram bit A website in the scope of the website of the corresponding allocated transmission opportunity, indicates whether to distribute conveyer for corresponding website The quantity of unit duration shared by the transmission opportunity of meeting and distribution；When the access control website does not send the packet configured information to one or more of websites, the access control Basic Service Set where website processed uses predefined packet configured information；Wherein, predefined packet configured information refers to The packet configured information that website has learned that.
- 10. method as claimed in claim 9, it is characterised in that the configured information that transmission opportunity is distributed for website is also wrapped The configured information containing packet and transmitting continuous temporal information, transmission is calculated according to the configured information that transmission opportunity is distributed for website The initial position of chance and duration, including：Whether the website is that website distribution passes according to packet configured information and resource impact validation of information access control website Defeated chance, if it is confirmed that distributing transmission opportunity for the website, is then calculated as website distribution according to transmitting continuous temporal information The initial position of transmission opportunity and duration.
- 11. method as claimed in claim 10, it is characterised in that further include：It is described to distribute the configured information of transmission opportunity also comprising packet configured information and transmitting continuous temporal information for website；The website receive packet configured information do not receive resource impact information when, according to predefined resource impact believe Whether the packet configured information confirmation access control website for ceasing and receiving is website distribution transmission opportunity, if it is confirmed that to be somebody's turn to do Website distributes transmission opportunity, then initial position and the duration of transmission opportunity are calculated according to transmitting continuous temporal information；Alternatively,The website is when receiving resource impact information no-reception to packet configured information, according to predefined packet instruction letter Whether the resource impact validation of information access control website for ceasing and receiving is website distribution transmission opportunity, if it is confirmed that to be somebody's turn to do Website distributes transmission opportunity, then initial position and the duration of transmission opportunity are calculated according to transmitting continuous temporal information.
- 12. the method as described in claim 10 or 11, it is characterised in that further include：The website is not when receiving transmitting continuous temporal information, using described in the predefined time interval conduct after radio frames Transmission opportunity start offset information, and use predefined transmission opportunity unit duration；Alternatively,The website is receiving transmitting continuous temporal information, and is held in transmitting continuous temporal information comprising transmission opportunity unit When continuous temporal information does not include transmission opportunity start offset information, using the predefined time interval after radio frames as the biography Defeated chance start offset information；Alternatively,The website is receiving transmitting continuous temporal information, and inclined comprising transmission opportunity starting in transmitting continuous temporal information When shifting information does not include transmission opportunity unit duration information, using predefined transmission opportunity unit duration.
- 13. method as claimed in claim 9, it is characterised in that the website in the transmission opportunity distributed for the website into Row radio frame transmission, including：The website sends radio frames in the transmission opportunity distributed for the website to the access control website, and receives access The confirmation frame of website is controlled, if not receiving acknowledgement frame, is retransmitted in the transmission opportunity, is receiving the confirmation After frame or the transmission opportunity, the website enters resting state.
- 14. method as claimed in claim 9, it is characterised in that the website in the transmission opportunity distributed for the website into Row radio frame transmission, including：The website sends radio frames in the transmission opportunity distributed for the website to the access control website, after being sent Or after transmission opportunity, into resting state；The website, into waking state, receives the access control website and sends after transmission opportunity total duration Confirmation bit diagram, wherein, transmission opportunity total duration refers to that the transmission opportunity of the website of all allocated transmission opportunities is held The sum of continuous time.
- 15. method as claimed in claim 14, it is characterised in that further include：When the acknowledgement bit figure instruction access control website receives the radio frames that the website is sent, the website Into resting state；When the acknowledgement bit figure instruction access control website does not receive the radio frames that the website is sent, the station Point keeps waking state, waits the access control website distribution transmission opportunity to be retransmitted.
- 16. one kind access control website, it is characterised in that including：Transmission opportunity allocation unit and information transmitting unit, wherein：The transmission opportunity allocation unit, for distributing transmission opportunity for website, is generated as the instruction of website distribution transmission opportunity Information, the configured information that transmission opportunity is distributed for website include resource impact information；Described information transmitting element, for the configured information that transmission opportunity is distributed for website to be sent to one or more stations Point；The resource impact information indicates whether to distribute transmission opportunity for the website of packet configured information instruction；The resource impact information uses one or more of resource impact bit diagram, resource impact bit diagram bit A website in the scope of the website of the corresponding allocated transmission opportunity, indicates whether to distribute conveyer for corresponding website The quantity of unit duration shared by the transmission opportunity of meeting and distribution；When the access control website does not send the packet configured information to one or more of websites, the access control Basic Service Set where website processed uses predefined packet configured information；Wherein, predefined packet configured information refers to The packet configured information that website has learned that.
- 17. access control website as claimed in claim 16, it is characterised in that：Access control website also sends packet configured information to one or more websites, and transmission opportunity is distributed for the website；The packet configured information includes：Group identification information and/or, station recognition offset information and station recognition number sum are believed Breath, indicates to be allocated the scope of the website of transmission opportunity.
- 18. access control website as claimed in claim 16, it is characterised in that：Access control website also sends transmitting continuous temporal information to one or more websites, and conveyer is distributed for the website Meeting；The transmitting continuous temporal information includes：Transmission opportunity start offset information and/or transmission opportunity unit duration letter Breath, the transmission opportunity start offset information indicates the initial position of first transmission opportunity, when the transmission opportunity unit continues Between information instruction transmission opportunity unit duration.
- 19. access control website as claimed in claim 17, it is characterised in that：The resource impact information indicates whether the website distribution transmission in the scope for the website of the allocated transmission opportunity Chance.
- A kind of 20. website, it is characterised in that including：Information receiving unit, transmission opportunity determination unit and radio frame transmission list Member, wherein：Described information receiving unit, for receiving the radio frames for accessing control website and sending, checks in the radio frames whether wrap Containing the configured information that transmission opportunity is distributed for website, the configured information that transmission opportunity is distributed for website is believed comprising resource impact Breath；The transmission opportunity determination unit, for being included as the configured information of website distribution transmission opportunity in the radio frames When, according to the initial position of the configured information calculating transmission opportunity that transmission opportunity is distributed for website and duration；The radio frame transmission unit, for carrying out radio frame transmission in the transmission opportunity of distribution；The resource impact information indicates whether to distribute transmission opportunity for the website of packet configured information instruction；The resource impact information uses one or more of resource impact bit diagram, resource impact bit diagram bit A website in the scope of the website of the corresponding allocated transmission opportunity, indicates whether to distribute conveyer for corresponding website The quantity of unit duration shared by the transmission opportunity of meeting and distribution；When the access control website does not send the packet configured information to one or more of websites, the access control Basic Service Set where website processed uses predefined packet configured information；Wherein, predefined packet configured information refers to The packet configured information that website has learned that.
- 21. website as claimed in claim 20, it is characterised in that：It is described to distribute the configured information of transmission opportunity also comprising packet configured information and transmitting continuous temporal information for website；The transmission opportunity determination unit, specifically for accessing control station according to packet configured information and resource impact validation of information Whether point is website distribution transmission opportunity, if it is confirmed that distributing transmission opportunity for the website, is then believed according to the transmitting continuous time Breath obtains initial position and the duration of the transmission opportunity for website distribution.
- 22. website as claimed in claim 20, it is characterised in that：The radio frame transmission unit, specifically for being sent out in the transmission opportunity distributed for the website to the access control website Radio frames are sent, and receive the confirmation frame of access control website, if not receiving acknowledgement frame, weight is carried out in the transmission opportunity Pass, after the acknowledgement frame or the transmission opportunity is received, the website enters resting state.
- 23. website as claimed in claim 20, it is characterised in that：The radio frame transmission unit, specifically for being sent out in the transmission opportunity distributed for the website to the access control website Radio frames are sent, after being sent or after transmission opportunity, into resting state；Terminate in transmission opportunity total duration Afterwards, into waking state, the confirmation bit diagram that the access control website is sent is received, wherein, transmission opportunity total duration Refer to total transmission opportunity duration of the website of all distribution transmission opportunities.
Priority Applications (1)
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| CN201110348338.2A CN103096439B (en) | 2011-11-07 | 2011-11-07 | Dispatching method, data transmission method, access control website and the website of website |
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| CN201110348338.2A CN103096439B (en) | 2011-11-07 | 2011-11-07 | Dispatching method, data transmission method, access control website and the website of website |
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| CN103458531A (en) * | 2013-08-09 | 2013-12-18 | 福建星网锐捷网络有限公司 | Data transmitting method and relevant device |
| WO2015042876A1 (en) * | 2013-09-27 | 2015-04-02 | 华为技术有限公司 | Channel access method and equipment |
| CN104581645A (en) * | 2013-10-29 | 2015-04-29 | 东莞宇龙通信科技有限公司 | Wireless communication method and wireless communication equipment |
| WO2015127616A1 (en) | 2014-02-27 | 2015-09-03 | 华为技术有限公司 | Wireless local area network data transmission method and device |
| CN104202822A (en) * | 2014-04-30 | 2014-12-10 | 中兴通讯股份有限公司 | Channel access method, channel access system and stations |
| CN104469908A (en) * | 2014-11-18 | 2015-03-25 | 江苏中兴微通信息科技有限公司 | Power-saving poll frame format and receiving and sending device thereof |
| WO2016095161A1 (en) * | 2014-12-18 | 2016-06-23 | 华为技术有限公司 | Method for acquiring station request, access pointand station |
| WO2016172981A1 (en) * | 2015-04-30 | 2016-11-03 | 华为技术有限公司 | Resource indication method, apparatus and device |
| US20170171855A1 (en) * | 2015-12-11 | 2017-06-15 | Qualcomm Incorporated | Network assistance for distributed unscheduled transmissions |
| CN107027161B (en) * | 2016-01-29 | 2020-09-18 | 华为技术有限公司 | Method, access point and station for data transmission in wireless local area network |
| CN110661608B (en) * | 2019-09-29 | 2021-09-17 | 腾讯科技（深圳）有限公司 | Communication method, communication device, computer readable medium and electronic equipment |
| WO2022027263A1 (en) * | 2020-08-05 | 2022-02-10 | Zte Corporation | System and method for resource allocation |
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